张乐群1,
付昕1,
金海洋2
1.南水北调中线水源有限责任公司，442700，湖北丹江口
2.长江水利委员会长江科学院流域水环境研究所，430010，湖北武汉
基金项目:中央级公益性科研院所基本科研业务费资助项目（CKSF2019177/SH）；国家自然科学基金资助项目（51809010）；丹江口水库藻类治理研究资助项目（CKSK2018867/SH）
详细信息
作者简介:万育生（1961—），男，南水北调中线水源有限责任公司副总经理，教授级工程师. 研究方向：水资源管理与保护、工程建设管理等. e-mail：wys@mwr.gov.cn
中图分类号:X524；TV697.3计量
文章访问数:155
HTML全文浏览量:61
PDF下载量:3
被引次数:0
出版历程
收稿日期:2020-01-01
网络出版日期:2020-07-29
刊出日期:2020-04-01
Assessment of eutrophication degree and its prevention in Danjiangkou Reservoir
Yusheng WAN1,,Lequn ZHANG1,
Xin FU1,
Haiyang JIN2
1. North Water Diversion Project Limited Liability Company, 442700，Danjiangkou,???? Hubei，China
2. Department of Water Environment Research, Changjiang River Scientific Research Institute, 430010, Wuhan, Hubei , China
摘要
HTML全文
图
参考文献
相关文章
施引文献
资源附件
访问统计
摘要
摘要:选取丹江口水库丹库和汉库的15个监测断面，采用相关加权综合营养状态指数评价法，对2018年丹江口水库水体营养状态进行了逐月评价，同时对相关水质参数包括高锰酸盐指数、总磷、总氮、透明度和叶绿素a等营养状态参数的权重结果进行了分析. 结果表明：2018年丹江口水库总体呈中营养状态，综合营养状态指数范围为31.9~37.9，汉库高于丹库. 其中汉库中心、柳陂镇山跟前2个监测断面在7—8月份接近轻度富营养化；总氮和叶绿素a是影响丹江口水库水体营养程度最重要的2个参数，其次是总磷和透明度，高锰酸盐指数对水库水体营养程度影响较小. 在营养状态分析和评价的基础上，提出了丹江口水库富营养化防治的对策建议，包括加强水库管理、构建生态过滤净化技术措施、开展水库总氮控制和藻类防治科学研究.
关键词:南水北调；中线工程/
丹江口水库/
水源地/
水质/
富营养化
Abstract:Nutrient level at Danjiangkou Reservoir was related to the health of water ecosystem and affected the safety of water supply in the middle route of south-to-north water transfer project. Nutrient levels at 15 monitoring sections in Danku and Hanku of Danjiangkou Reservoir were therefore evaluated monthly in 2018 with correlation weighted comprehensive nutrition status index. Further, weight value of nutritional state indexes including permanganate index, total phosphorus, total nitrogen, water transparency and chlorophyll a were compared. Danjiangkou Reservoir was found to be at medium nutrient level in 2018, the average annual comprehensive nutritional status index values were found to range from 31.1 to 37.9, which was higher at Hanku Reservoir than at Danku Reservoir. It was noted that sections of Hanku Reservoir center and Shangenqian of Liubei town were close to light eutrophication level in July and August of 2018. Total nitrogen and chlorophyll a were found to be the most important indexes affecting nutrient level of water body, followed by total phosphorus and water transparency. Permanganate index was found to have little influence on nutrient level of the water body. Nutrient status analysis and assessment were used to provide countermeasures for the prevention and control of eutrophication in Danjiangkou Reservoir: to strengthen management, to construct filtration and purification measures, to do more research on total nitrogen control and algae prevention.
Key words:South-to-North Water Diversion/
middle route project/
Danjiangkou Reservoir ; water source area/
water quality/
eutrophication
